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A nurse is caring for a client who has a new prescription for interferon beta-1a 11 mcg subcutaneous three times weekly. Available is interferon beta-1a injection 22 mcg/0.5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.25"]

To calculate the dosage of interferon beta-1a for the client, the nurse should use the following formula:

Dose (mL) = Desired dose (mcg) / Available dose (mcg/mL)

Plugging in the values from the prescription and the medication label, we get:

Dose (mL) = 11 mcg / 22 mcg/0.5 mL

Simplifying the fraction, we get:

Dose (mL) = 0.5 / 2

Dividing both sides by 2, we get:

Dose (mL) = 0.25

Therefore, the nurse should administer 0.25 mL of interferon beta-1a per dose.

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Correct Answer is ["0.5"]

Explanation

To calculate the dosage of quinapril, the nurse needs to apply the formula: D/H x Q = X, where D is the desired dose, H is the dose on hand, Q is the quantity of the drug, and X is the amount to administer.

In this case, D = 20 mg, H = 40 mg, Q = 1 tablet, and X is unknown.

Plugging in the values, we get: 20/40 x 1 = X.

Simplifying, we get: 0.5 = X.

Therefore, the nurse should administer 0.5 tablets of quinapril.

Correct Answer is ["8"]

Explanation

To calculate the dose of phenytoin oral suspension, the nurse should use the following formula:

Dose (mL) = Desired dose (mg) / Concentration (mg/mL) x Volume (mL)

Plugging in the values from the question, we get:

Dose (mL) = 200 mg / 125 mg/5 mL x 5 mL

Simplifying the equation, we get:

Dose (mL) = 8 mL

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer quinapril 20 mg PO Available is quinapril 40 mg tablets. How many tablets should the answer to the nearest tenth Use a leading zero if it applies. Do not use a trailing zero)

Correct Answer is ["0.5"]

Explanation

A nurse is preparing to administer phenytoin 200 mg PO to a client. Available is phenytoin oral suspension 125 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["8"]

Explanation

A nurse is preparing to administer magnesium hydroxide 2 tbsp PO. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer filgrastim 480 mcg subcutaneous daily. Available is filgrastim injection 300 mcg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse on a pediatric unit is implementing a prescription for dexamethasone solution 0.3 mg/kg now. Which of the following additional Information should the nurse have to interpret this prescription and administer this medication? (Select all that apply.)

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A nurse is preparing to administer chlorpromazine 12.5 mg IM to a client. Available is chlorpromazine 25 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer diazepam 10 mg IM stat to a client. Available is diazepam injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)